Preheat oven to 400 degrees F. Using a paring knife, trim tortillas to fit a 9-inch springform pan, using the bottom of the pan as a guide. Set aside.
Heat oil in skillet over medium heat. Add onion, jalapeno, garlic, and cumin; season with salt and pepper. Cook, stirring occasionally, until onion is softened, 5 to 7 minutes.
Add beans and beer to skillet, and bring to a boil. Reduce heat to medium; simmer until liquid has almost evaporated, 8 to 10 minutes. Stir in corn and scallions, and remove from heat. Season with salt and pepper.
Fit a trimmed tortilla in bottom of springform pan; layer with 1/4 of the beans and 1/2 cup cheese. Repeat three times, using 1 cup cheese on top layer. Bake until hot and cheese is melted, 20 to 25 minutes. Unmold pie; sprinkle with scallions. To serve, slice into wedges.
Servings 0
* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.